Question

Make a claim about how the complexity of fossils in the fossil record can provide clues to the relative ages of rock units.

Answer 1

about the geologic history of Earth. How do fossils provide important clues to environmental changes that occurred in earths past?

revealing the ways that organisms have changed throughout the geologic past. ... to learn about how environmental changes have affected living organisms.

Step-by-step explanation:

i hope it's right..